If reports are to be believed, Apple will restrict the faster millimeter-wave 5G technology to only the iPhone 12 Pro Max, the rumoured top model for the upcoming iPhone series. Fast Company has reported that the larger 6.5-inch screen iPhone may feature the faster 5G connection, while the rest of the series will only offer the comparatively slower sub-6GHz 5G connectivity. The report says the cause of this will be the extra pressure on the battery by the faster 5G tech, which only the largest iPhone will be able to bear.